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3 years ago

This shows two semicircles connected to a rectangle.

Mathematics

2 answers:

Damm [24]3 years ago

6 0

Answer:

D. 136.5 ft^2

Step-by-step explanation:

14x7=98 rectangle

7/2= radius of circle

pie x r^2 (area of both semicircles cuz if u connected them it would make 1 circle)

pie X 3.5^2

38.4845

total

98+38.4845

136.5

My name is Ann [436]3 years ago

4 0

The answer you’re looking for is D Hopefully this helps

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State the sine and cosine of two unique angles that do not fall on an axis where the values are the same positive value. Give th

Anna007 [38]

Answer:

sin(30°) = 1/2 and cos(60°) = 1/2

Step-by-step explanation:

* Lets explain how to solve the problem

- In the first quadrant all the trigonometry functions are positive values

- We need two angles have same positive values of sine and cosine

- That means sin(x) = cos(y) = + ve value

∴ The two angles will lie on the first quadrant

- If sin(x) = cos(y), then angles x and y are complementary angles

- The sum of the measures of the complementary angles is 90°

∴ x + y = 90°

- In any right angle triangle

- Angle Ф is one of its acute angles, where Ф is opposite to the side

of length a , adjacent to the side of length b and c is the length of the

hypotenuse

- Angle β is the other acute angle, where β is opposite to the side

of length b , adjacent to the side of length a and c is the length of the

hypotenuse

- The sum of Ф and β is 90° ⇒ complementary angles

∵ sin Ф = opposite/hypotenuse

∵ cos Ф = adjacent/hypotenuse

∴ sin Ф = a/c and cos Ф = b/c ⇒ (1)

∵ sin β = opposite/hypotenuse

∵ cos β = adjacent/hypotenuse

∴ sin β = b/c and cos β = a/c ⇒ (2)

- From (1) and (2)

∴ sin Ф = cos β and cos Ф = sin β

* Now lets chose any two complementary angles

- If Ф = 30°, then β = 60°

∴ sin(30°) = 1/2

∴ cos(60°) = 1/2

* sin(30°) = 1/2 and cos(60°) = 1/2

# Remember you can chose any two angles their sum is 90°

6 0

4 years ago

People are arriving at an amusement park at a constant rate if 450people arrive in 15 minutes how many people arrive each minute

klio [65]

To find the answer, you have to divide-
the people arriving/minute

So it would be -
450/15 = 30
There are 30 people arriving each minute.

6 0

4 years ago

Plsssss help me with this angle circle problem what is x

kirza4 [7]

Answer:

x = 3

Step-by-step explanation:

Once again we want to use the relationship stated earlier

Where A * B = C * D

Once again imagine that the segments in the given problem have letters

A = x

B = 12

C = x + 1

D = 9

Now we create an equation using the relationship

12 * x = 9(x+1)

now we solve using basic algebra

step 1 distribute the 9 to the x and the 1

9 * x = 9x

9 * 1 = 9

now we have 12x = 9x + 9

step 2 subtract 9x from each side

12x - 9x = 3x

9x - 9x cancels out

now we have 3x = 9

step 3 divide each side by 3

3x/3=x

9/3=3

we're left with x = 3

4 0

3 years ago

Read 2 more answers

Oak street and elm street run parallel to each other when Main Street intersects them it forms interior <6 measuring70 what i

Troyanec [42]

IfIf it forms interior <6 measuring70. The measure of <4 is: B. 110°.

<h3>Measure of <4</h3>

Using this interior angle theorem

Measure of <4=180° - <6

Where:

<6 measure 70

Hence:

Measure of <4=180°-70°

Measure of <4=110°

Therefore the measure of <4 is: B. 110°.

Learn more about measure of <4 here:brainly.com/question/25716982

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2 years ago

Charlotte owns two entertainment websites. Here are some details about those websites for one entire month: Website A Website B

irina1246 [14]

Answer:

I'm pretty sure its choice c and d i'm sorry if its not i did all the math, although i might have gotten it wrong, just double check.

Step-by-step explanation:

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3 years ago